Bending structure of shielding frame

Abstract

The utility model discloses a shielding rack bending structure comprising a shielding rack body which is arranged in a rectangular plate-shaped structure. The shielding frame comprises a shielding frame body, each edge of the shielding frame body is provided with a bending part which extends outwards, a corner structure which is spliced with each other is arranged between two adjacent bending parts, and each corner structure comprises an insertion part arranged at the end part of one bending part and a butt joint part arranged at the end part of the other bending part; a gap is arranged between the plugging part and the shielding rack body, and the plugging part is used for bending towards the butt joint part and is plugged and fixed with the butt joint part. According to the utility model, the problems of high manufacturing requirement and high cost of the existing shielding frame structure are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of electromagnetic shielding, in particular to a bending structure of a shielding frame. Background Art

[0002] In electronic devices, some electronic components on a circuit board will emit high-frequency electromagnetic waves during operation, and the high-frequency electromagnetic waves will cause certain interference to the normal operation of other electronic components on the circuit board. In order to avoid or reduce the interference and radiation of high-frequency electromagnetic waves to electronic components, in the prior art, an electromagnetic shielding frame is usually used to cover the devices to be shielded on the circuit board to achieve the purpose of electromagnetic shielding.

[0003] The existing shielding frames are usually of a rectangular frame structure. During the processing, the initial state is a plate-like structure, and it needs to be processed into a frame structure with flanges on all sides through a mold. The existing processing methods usually directly perform stretching and mold processing on the plate-like structure. Especially at its corners, due to the complex structure, the requirements for the mold for the stretching and forming of the bracket are relatively high, which will lead to an increase in cost. Summary of the Utility Model

[0004] The main purpose of the utility model is to provide a bending structure of a shielding frame, aiming to solve the problems of high manufacturing requirements and high cost of the existing shielding frame structure.

[0005] To achieve the above purpose, the utility model provides a bending structure of a shielding frame, including a shielding frame body, and the shielding frame body is arranged in a rectangular plate-like structure; each side of the shielding frame body is respectively provided with a bending part extending outward, and a corner structure for splicing is arranged between adjacent two bending parts. The corner structure includes a plugging part arranged at the end of one bending part and a docking part arranged at the end of the other bending part; a gap is arranged between the plugging part and the shielding frame body, and the plugging part is used for bending towards the docking part and being plugged and fixed with the docking part.

[0006] Optionally, the docking part includes a bending section for bending, at least one protrusion is arranged at the end of the bending section, and the docking part includes a groove for plugging with the protrusion.

[0007] Optionally, the protrusion and the groove are arranged in a gourd shape.

[0008] Optionally, the shielding frame body and the bending part are arranged as an integrally formed structure.

[0009] Optionally, the thickness of the shielding frame body and the bending part is set to be 0.1 mm to 0.3 mm.

[0010] Optionally, the width of the bending part is set to be 1 mm to 7 mm.

[0011] Optionally, the width of the gap is greater than 0.5 mm.

[0012] Optionally, the length of the gap is set to be 0.5 mm to 3 mm.

[0013] Optionally, the shielding frame body and the bending part are integrally formed structures made of cupronickel or stainless steel or aluminum.

[0014] The beneficial effects of the present utility model are as follows: The structure of the existing shielding frame is improved. The bending parts on each side of the shielding frame body are set as independent bending structures, and the adjacent two bending parts are connected by a corner structure. The corner structure includes a plugging part and a butting part respectively located at the ends of the adjacent two bending parts, and the plugging part can be bent towards the butting part, which is convenient for the bending and forming of the overall structure of the shielding frame. Compared with the existing integrally formed structure, the manufacturing process is simple, the bending is convenient, and the cost is low. Description of the Drawings

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following described drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0016] Figure 1 It is a schematic diagram of the bending structure of the shielding frame of the present utility model;

[0017] Figure 2 It is a schematic diagram of the unfolded structure of the shielding frame of the present utility model;

[0018] Figure 3 For the present utility model Figure 2 Partial enlarged view at A;

[0019] The realization, functional features and advantages of the object of the present utility model will be further described with reference to the embodiments and the drawings. Detailed Embodiments

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, rather than all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.

[0021] It should be noted that if there are directional indications (such as up, down, left, right, front, back...) involved in the embodiments of the present utility model, then such directional indications are only used to explain the relative positional relationship, movement conditions, etc. between components in a certain specific posture (as shown in the attached drawings). If this specific posture changes, then the directional indications will also change accordingly.

[0022] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present utility model, then such descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and / or" appearing throughout the text is that it includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, or solution B, or the solution where A and B are satisfied simultaneously. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement it. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0023] An embodiment of the present utility model provides a bending structure of a shielding frame, which includes a shielding frame body 1, and the shielding frame body 1 is arranged in a rectangular plate-like structure; each side of the shielding frame body 1 is provided with a bending portion 2 extending outward, and a corner structure is arranged between adjacent two bending portions 2. The corner structure includes a plug-in portion arranged at the end of one of the bending portions 2 and a docking portion arranged at the end of the other bending portion 2; a gap 5 is provided between the plug-in portion and the shielding frame body 1, and the plug-in portion is used to bend towards the docking portion and be plugged and fixed with the docking portion.

[0024] It should be noted that this embodiment improves the structure of the existing shielding frame. The bending portions 2 on each side of the shielding frame body 1 are set as independent bending structures, and adjacent two bending portions 2 are connected through a corner structure. The corner structure includes a plug-in portion and a docking portion located at the ends of adjacent two bending portions 2 respectively, and the plug-in portion can bend towards the docking portion, which is convenient for the bending and forming of the overall structure of the shielding frame. Compared with the existing integral forming structure, the manufacturing process is simple, the bending is convenient, and the cost is low.

[0025] Specifically, in this embodiment, during bending, first, the bending portions 2 on the four sides of the shield frame body 1 are bent 90° in the same direction to form a frame structure of the shield frame. At this time, there is a gap 5 at the ends of two adjacent bending portions 2 (i.e., the four end corners of the shield frame). At this time, bending the insertion portion 90° toward the adjacent docking portion can make the insertion portion entirely wrap the end corner of the shield frame. Then, splicing the insertion portion and the docking portion with each other can form a complete and continuous frame-shaped structure from the four bending portions 2, thus completing the manufacture of the overall structure of the shield frame. It should be noted that in this embodiment, after the bending portion 2 is bent 90°, the insertion portions at the ends of the bending portion 2 uniformly extend beyond the edge of the shield frame body 1, while the docking portions do not extend beyond the edge of the shield frame body 1. This structure can make the insertion portion wrap the end corner of the shield frame through the bending of the insertion portion, making the structure more compact and stable. After the insertion portion is bent 90°, it can be adaptively spliced with the docking portion, thereby connecting the four bending portions 2 completely and continuously to form a complete frame-shaped structure.

[0026] Furthermore, the docking portion includes a bending section 31 for bending. At least one protrusion 32 is provided at the end of the bending section 31. The docking portion includes a groove 41 for inserting the protrusion 32. It should be noted that in this embodiment, the insertion portion is divided into a bending section 31 for completing the bending function and a protrusion 32 for the splicing function, which can prevent the structure of the protrusion 32 from being affected when the docking portion is bent and deformed. The bending section 31 and the protrusion 32 are of an integral structure. When the docking portion is bent, only the bending section 31 needs to be bent. After the bending section 31 is bent 90°, the protrusion 32 can be directly spliced into the groove 41 to complete the overall splicing of the corner structure. The structure is simple and has strong stability.

[0027] Furthermore, the protrusion 32 and the groove 41 are arranged in a gourd shape. In this embodiment, the edge of the gourd-shaped structure is curved, which can improve the docking tightness between the protrusion 32 and the groove 41 and avoid the situation where a right-angle structure (such as a rectangle) causes the two to be unable to be closely spliced. The fitting degree between the protrusion 32 and the groove 41 is higher, and the structural stability is stronger.

[0028] Furthermore, the shield frame body 1 and the bending portion 2 are provided as an integrally formed structure. In this embodiment, the shield frame body 1 and the bending portion 2 can be integrally formed by stamping. The process is simple, the cost is low, and the efficiency is high. Specifically, the shield frame body 1 and the bending portion 2 are provided as an integrally formed structure made of cupronickel or stainless steel or aluminum. Preferably, cupronickel material is used. Cupronickel, also known as copper-nickel-zinc alloy, is usually used for the manufacture of electromagnetic shield frames. This alloy is composed of copper, nickel, and zinc and has good electrical conductivity and magnetic conductivity, making it suitable for various applications requiring electromagnetic shielding.

[0029] Further, the thickness of the shielding frame body 1 and the bending part 2 is set to be 0.1 mm to 0.3 mm. It should be noted that if the thickness of the shielding frame body 1 and the bending part 2 is too thin, the rigidity of the overall structure will be affected, resulting in low structural stability. If it is too thick, the cost will be relatively high. Therefore, in this embodiment, a thickness of 0.1 mm to 0.3 mm is adopted to save costs and improve the stability of the product.

[0030] Further, the width of the bending part 2 is set to be 1 mm to 7 mm. The width of the bending part 2 will affect the overall height of the shielding cover, and its specific height can be designed according to the height of the actual electronic product. In this embodiment, its width is 1 mm to 7 mm, which is suitable for most electronic products in the prior art.

[0031] Further, in this embodiment, a gap 5 is provided between the plugging part and the shielding frame body 1, which can facilitate the bending of the plugging part. The plugging part and the shielding frame body 1 are separated by the gap 5 to prevent stress from being generated between the shielding frame body 1 and the plugging part during bending, which may cause the shielding frame body 1 to deform and affect the flatness of the shielding frame body 1. In this embodiment, the width of the gap 5 is greater than 0.5 mm to facilitate the cutting of the gap 5 by the cutting tool. At the same time, if the length of the gap 5 is too long, a gap will be generated between the bending part 2 and the shielding frame body 1, affecting the structural stability. If the length of the gap 5 is too small, it will affect the bending effect of the plugging part and the flatness of the shielding frame body 1. Therefore, in this embodiment, the length of the gap 5 is set to be 0.5 mm to 3 mm.

[0032] The above are only the optional embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structural transformation made under the inventive concept of the present invention by using the content of the specification and drawings of the present invention, or any direct / indirect application in other related technical fields is included in the patent protection scope of the present invention.

Claims

1. A shield frame bending structure, characterized in that: It includes a shielding frame body, which is in a rectangular plate-like structure; each side of the shielding frame body is respectively provided with a bending portion extending outward, and a corner structure spliced ​​to each other is provided between two adjacent bending portions, and the corner structure includes a plug-in portion provided at the end of one of the bending portions and a docking portion provided at the end of the other bending portion; a gap is provided between the plug-in portion and the shielding frame body, and the plug-in portion is used to bend toward the docking portion and be plugged and fixed with the docking portion.

2. The shield frame bending structure according to claim 1, characterized in that: The docking portion includes a bending section for bending, at least one protrusion is provided at the end of the bending section, and the docking portion includes a groove plugged with the protrusion.

3. The shield frame bending structure according to claim 2, characterized in that: The protrusions and the grooves are arranged in a gourd shape.

4. The shield frame bending structure according to claim 1, characterized in that: The shielding frame body and the bent portion are configured as an integrally formed structure.

5. The shield frame bending structure according to claim 4, characterized in that: The thickness of the shielding frame body and the bent portion is set to 0.1 mm to 0.3 mm.

6. The shield frame bending structure according to claim 5, characterized in that: The width of the bending portion is set to 1 mm to 7 mm.

7. The shield frame bending structure according to claim 6, characterized in that: The width of the gap is greater than 0.5 mm.

8. The shield frame bending structure according to claim 7, characterized in that: The length of the gap is set to 0.5 mm to 3 mm.

9. The shield frame bending structure according to claim 4, characterized in that: The shielding frame body and the bent portion are configured as an integrally formed structure made of nickel silver, stainless steel or aluminum.

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